Downtown Stockton waterfront along the Stockton Channel.

Weather · September

Stockton weather in September

Average highs of 90°F, lows of 58°F and 0.10 in of rain, from 30 years of weather records.

September is Stockton’s 4th warmest month, with average highs of 90°F and lows of 58°F. That is 4° cooler than August, and 14° above the yearly average high.

Average high
90°F
Average low
58°F
Precipitation
0.10 in
Wet days
1
Sunrise · sunset
6:46 AM · 7:14 PM

What to wear in September

What September weather is good for

What’s on in Stockton in September

Guides for this month: Halloween in Stockton.

See all upcoming events and school days off.

September compared with the months around it

MonthHighLowRain
August94°F60°F0.00 in
September90°F58°F0.10 in
October80°F51°F0.70 in

Planning a trip? See the best time to visit Stockton and today’s forecast.

Questions

How hot does it get in Stockton in September?

Average highs are 90°F and average lows 58°F, for a daily mean of 74°F. Individual days run hotter or colder than these 30-year averages.

Does it rain in Stockton in September?

September averages 0.10 in of precipitation over about 1 days with at least 0.01 in. It is the 10th wettest month of the year.

What time is sunset in Stockton in September?

Around mid-September the sun rises about 6:46 AM and sets about 7:14 PM, for roughly 12.5 hours of daylight.

Is September a good time to visit Stockton?

The mildest months for visiting are April, May, October. September is hot, with Halloween events.

NOAA U.S. Climate Normals 1991–2020, Stockton Metro Ap station (5.9 mi from downtown). Sunrise and sunset are calculated for September 15 at the city’s coordinates.

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